Change cache to v4

.github/workflows/container.yml

@@ -36,7 +36,7 @@ jobs:
         uses: docker/setup-buildx-action@v1
 
       - name: Cache Layers
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: /tmp/buildx-cache
           key: buildx-cache-${{ github.sha }}